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Module: Windows Live login
What's it Do?
The Windows Live login allows users to login with their Windows Live account and automatically have a Drupal account created.
Obviously if you have a large user base of Windows Live users, this module would make it super easy to create a Drupal account.
Let me diverge for a moment. There are more and more modules like Windows Live login that allow users to sign-in to Drupal with various accounts (Facebook, Google, Twitter, etc.). One issue is that most of these 3rd party authentication modules all work a little differently. It seems like a great opportunity to create a 3rd party authentication module and allow the various authentication methods as submodules, potentially similar to WYSIWYG module. Janrain Engage module attempts to accomplish this, but requires a license and has some limitations.
Until then, these one-off 3rd party authentication modules, like Windows Live login are a great solution for making it easy for your users to login.
Look Useful? Review It!
If this sounds like something you'd like to see readily available on Drupal.org, you should review it and help make that happen.